G - Physics – 06 – K
Patent
G - Physics
06
K
G06K 9/00 (2006.01)
Patent
CA 2545033
The invention relates to the recognition of digital fingerprints, and more particularly to recognition via a sensor which is shaped as an elongated strip of detectors which can detect the crests and valleys of fingerprints as a finger is scrolled past a sensor in a substantially perpendicular manner in relation to the direction of elongation of said strip. In order to improve recognition security, the finger is scrolled in two opposite directions and verification occurs to ensure that the deformation of the image between said two directions corresponds to a normal deformation given the natural plasticity of the skin.
L'invention concerne la reconnaissance d'empreintes digitales, et plus particulièrement la reconnaissance à partir d'un capteur en forme de barrette allongée de détecteurs capables de détecter les crêtes et vallées des empreintes digitales lors du défilement relatif d'un doigt par rapport au capteur sensiblement perpendiculairement à la direction d'allongement de la barrette. Pour améliorer la sécurité de la reconnaissance, on prévoit un défilement du doigt dans deux sens opposés et une vérification que la déformation d'image entre les deux sens correspond à une déformation normale compte-tenu de la plasticité naturelle de la peau.
Atmel Grenoble
Robic
LandOfFree
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